2104256378 has 32 divisors (see below), whose sum is σ = 3824329728.
Its totient is φ = 849139200.
The previous prime is 2104256377. The next prime is 2104256381. The reversal of 2104256378 is 8736524012.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (2104256377) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49463 + ... + 81578.
It is an arithmetic number, because the mean of its divisors is an integer number (119510304).
Almost surely, 22104256378 is an apocalyptic number.
2104256378 is a deficient number, since it is larger than the sum of its proper divisors (1720073350).
2104256378 is a wasteful number, since it uses less digits than its factorization.
2104256378 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131118.
The product of its (nonzero) digits is 80640, while the sum is 38.
The square root of 2104256378 is about 45872.1743325951.
The cubic root of 2104256378 is about 1281.4437603203.
The spelling of 2104256378 in words is "two billion, one hundred four million, two hundred fifty-six thousand, three hundred seventy-eight".